National Weather Service issues severe storm warnings

SAN DIEGO - A boisterous monsoon season in the mountains of
southern California continued today when a series of storms
prompted the National Weather Service to pepper the area with
severe storm warnings after 1 p.m.

At 1:19 p.m., the National Weather Service said its radar
indicated a severe thunderstorm capable of producing nickel-sized
hail had developed in the mountains along state Route 78 between
Ramona and the Borrego Springs area.

The Weather Service issued a flash flood warning for the area,
which was hit hard by flash flooding last weekend.

Areas burned by brushfires, including the Horse Fire, were
susceptible to debris flows, that could block highway culverts and
cause localized flooding, the warning said.

The Weather Service also issued a flash flood warning areas of
Riverside County just northeast of Mount Palomar at about 1
p.m.

Earlier today, thunderstorms popped up over the Big Bear Lake
region of the San Bernardino National Forest, where a California
Highway Patrol officer reported 2 inches of slush left over from a
noon-hour hailstorm on state Highway 38 at the 8,443-foot-high Onyx
Summit.

That thunderstorm has shifted to the west, prompting flash flood
warning to be issued for the cities and rural areas in the Victor
Valley, along Interstate 15 north of Cajon Summit.